Cover for a food container



FIG. 1 is a top, right side and front perspective view of a cover for a food container showing my new design;

FIG. 2 is a front elevation view, the rear elevation being a mirror image thereof;

FIG. 3 is a right side elevation view, the left side elevation being a mirror image thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a cover for a food container, as shown and described. 